/Engine/Plugins/Runtime/nDisplay/Source/DisplayCluster/Public/Render/Viewport/IDisplayClusterViewportManager.h
Update viewports for frame. For rendering outside of cluster nodes Update ICVFX configuration from root actor components [Game thread func]
bool UpdateCustomConfiguration ( [EDisplayClusterRenderFrameMode](API\Plugins\DisplayCluster\Render\Viewport\RenderFrame\EDisplayClusterR-) InRenderMode, const [TArray](API\Runtime\Core\Containers\TArray)< [FString](API\Runtime\Core\Containers\FString) > & InViewportNames, class [ADisplayClusterRootActor](API\Plugins\DisplayCluster\ADisplayClusterRootActor) * InRootActorPtr )